Chat Report Accident Traffic Potomac Traffic 2024-12-14 Roadnow Click for Real Time Traffic Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Potomac Rockville, MD 6.91 mi Bethesda, MD 7.03 mi Cabin John, MD 7.54 mi Interstate highway exits close to Potomac Exit 4b a, i270md 4.60 mi Exit 2, i270md 4.92 mi Exit 38, i495md 4.99 mi Interstate highways close to Potomac i270md map 4.60 mi i495md map 4.99 mi i495va map 4.99 mi State roads close to Potomac MD 189 map 0.41 mi MD 190 map 1.94 mi MD 191 map 3.84 mi